SE 4220 EX

About this product

Direct Roving for the Reinforcement of Polyolefins

SE 4220 EX direct roving is made out of E-CR glass. It consists of continuous filaments bonded together into a single strand and wound into a cylindrical shaped bobbin. Strand of SE 4220 EX direct roving is primarily pulled from its external diameter. Internal diameter of SE 4220 EX roving is made suitable with creel’s standard expandable mandrels. SE 4220 EX is proposed with a controlled length. Sizing of SE 4220 EX is specifically designed for compatibility with Polypropylene (PP) and Polyethylene (PE). SE 4220 EX is the roving of choice for Long Fibre Technologies such as: • Pultrusion (pellets, tapes), • Prepreg (tapes). SE 4220 EX is in use within the Automotive industry, specifically for parts requiring structural properties. SE 4220 EX is also approved for use in parts in contact with food.

FEATURES - Multi-application - Multi-process - Multi-resin - External pull - Proposed with controlled length

BENEFITS - One-fits-all (structural Automotive, contact with food) - Pultrusion (pellets, tapes), Prepreg (tapes) - PP, PE - Low twist - Good spread - Reduced waste

PACKAGING Standard packaging of SE 4220 EX consists of 1280 mmm x 1000 mm x 1200 mm (50.4 in x 39.4 in x 47.2 in) (L x w x h) pallet containing individual bobbins (Bulk-Pak®). This Bulk-Pak® pallet configuration displays 48 individual bobbins evenly distributed on 4 layers (12 rovings per layer), leading to a net weight close to 1070 kg (2360 lb). Please contact us for possible other types of packaging.

STORAGE Storage in a cool and dry warehouse into the original packaging is formally recommended. More precisely ideal storage conditions are a temperature between 15°C (59°F) and 35°C (95°F) and a relative humidity comprised between 35% and 75%. If these conditions are maintained, the glassfibre product should not undergo significant changes when stored for extended periods of time. It is also strongly recommended to condition it in the workshop for at least 24 hours before use to prevent condensation.

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Direct Roving Direct Rovings consist of continuous filaments bonded into a single strand and wound onto a bobbin shape. 3B’s Direct Rovings are available in both corrosion resistant E-glass and R-glass formulations. 3B’s Direct Rovings are designed for excellent processability in composites technologies like: filament winding pultrusion knitting & weaving texturisation Long Fibre Technologies (LFT) Our high performance R-glass, HiPer-tex®, is designed for high load bearings thanks to its high stiffness and strength. HiPer-tex® also displays an improved thermal resistance over standard E type glass, and is corrosion as well as acid resistant. Depending on the technology they are designed for, 3B’s Direct Rovings are compatible with Thermoplastic or Thermoset resins as presented in our product portfolio below.